Choke latch



Aug. 25. 1925. 1,55L420 J. E. MESSENGER CHOKE LATCH Filed Jan. 29, 1925 t' v @M/@MW Patented Aug. 25, 1925. l

PATENT OFFICE.

JACK n, nnssnuenn, or Das Moines, iowa.

CHOKE LATCH.

Application filed.V January To all whom t may confers.:

Be it .known that l, JACK E. MESSENGER, a .citizen of the United States, residing at Des Moines, in the county or', Polk and State ot' Iowa, have invented a. certain new and useful Choke Latch, .of which the following is a specilication.v f

The object of my invention is to provide a choke latch for securely holding the choker rod of an automobile carburetor control in any of its adjusted positions, the parts being of simple, durable and comparatively inexpensive con-struction.

More particularlymyv invention relates to a choke' latch especially adapted for use upon a Ford automobile construction, whereinthe choke latch may be supported lupon atined bearing member by extending thereover, and therearound wherein the choke latch will be securely anchored without `any additional means. l

Still a further object is to provide a choke latch having a spring actuated movable member adapted to engage the choker rod for maintaining it against'accide'ntal movement after being manually moved for adjusting the carburetor.

Still a further objectis to prove an actuated movable member .arrangedv with a flanged edge whichis curved to form an arc oit a circle conforming to thearcof a circle in which the-end of a choker rod moves, wherein the chokerprod will'be vin'engagement with the movable member during all of its movement. j l

Still a further object is to 'provide a choke latch in combination withV a choker rod and a bell crank lever assembly together with' the bearing for the bell crank lever wherein the choke latch will cooperate with the bell crank lever assembly in such manner that when the choke latch is installed by simply placing it over thebell crank lever assembly, it is ready for operation without further manipulation or adjustment., i

lith these and other objects yin view, my invention consists in the construction, ar.-

v rangement and combination ot' the various parts of my device, whereby the objects contemplated lare attained, as hereinafter more.

fully set forth, pointed. out in my claims, and illustratedl in .the accompanying drawings in which:

Figure 1 is a sectional view through aportion ofa dash of an automobile showing the Choker rod and bell crank lever assembly choker rod.

29, 1925. Serial No. 5,543..

, operative position.

Figure 1A is a view of a carburetor with the connecting rod shown in position where `is connectswith the bell crank lever shown in Figure 1.

Figure 2 is a front view of the choke latch taken along line 2 2 of Figure 1.

`Figure 3 is adetail, sectional view vtaken on vline 3 3 of Figure 1 showing the supporting means for the latch support.

Figure 4 is a perspective view of the choke llatch support; and

Figure 5 is a perspective'view of the movable member of the choke latch showing the notched flange tor engagement` with the ln the accompanying drawings, I have used the. reference numeral 10 to indicate the ordinary instrument board of a Ford or other automobile through which is slidably lmounted a choker rod .11. f

The choker rod 11 extends through a 'dash 12 just rearwardly of the engine of the automobile. f

f .The upper edge of the dash 12 is connected to theinstrument board 10 by the cowl 13. The ordinary hood 14 of the automobile is shown in section in Figure 1 of the drawings.

The choker rodv 11 is provided with 'a right angled extension 13 adapted to extend through an opening formed in a bell crank lever 14,

The bell crank lever 14 is mounted in a bearing 15 which isv formed of a pair of spaced .flanges 1G connected together by a connecting web 1f?. The connecting web 17 is riveted to the dash 12 by means of the rrivets or thelike 18.

The outer corners between the connecting flange 17 and the spaced members 16 are curved, as at 19, so thatfmy choke latch support may be securely held in position as will hereinafter be more fully set forth.

. .The lower end'of the free end of the bell crank lever 14 is connected to a4 control rod 20, which ias*V connected to a bell crank 21, which forms a part ofthe ordinary carbu retor 22. j Y The adjustment of the carburetor 22 may be'made by pushing the rod 11 longitudi- "nally, thereby operating the bell crank lever 14. i j i In order to permitlongitudinal movement, andat the same time permit the inner end of the cliOker rod 11 to travel in an arc of against the outer side of the flange a circle, it is necessary to have a slot 23 in the dash 12.

The parts just described are of the ordinary standard equipment of a Ford type of automobile. 4

My improved choke latch includes a support It formed of a metal stamping so as to have a vertical flange 2st arranged with a notch 25, which is of sutlicient width to receive the connecting members 17 of the bearing 15.

The notch separates the flange 24 into two parts 26. The parts 26 are formed with a raised or upstruck bead 27 for reinforcing purposes. l The two members 26 rest on each side of the connecting members 17 and lit into the corners 19 in such manner as to cause the support A to be securely anchored on the bearingy without the use of any additional means.

Extending downwardly and forwardly inclined from the flange 24 is a shelf or support 28, which is spaced nearer one side of the flange 26 than the other so as to permit the bell crank lever 14 to be free to operate, without interfering` with the support or shelf 28. j i

'lhe shelf 28 is formed with a pair of openings 29 through which are extended guide pins 30 having their lower ends bent in opposite directions to form stops 31.

rlhe guides 30 are formed of a movable 'member 32, which consists of a flat bottom having an upturned flange on one edge.

The shelf 28 is formed with an upturned flange 341 on one side, The movable member 32 rests upon the shelf 28 and against the upturned flange 24.

Coil springs are interposed between the bottom of the movable member 32 and the top of the shelf 28.

YThe stops 31 limit the amount of movement in one direction of the movable inember 32 relative to the shelf 28.

Vllhe flange on the movable member 32 has its` periphery formed with a plurality of notches $36, all of which are arranged so as to form an arc of a circle with the pivot or center point being arranged the same as the pivot upon which the bell crank lever 14toperates.

The angle extension 13 on the choker rod l1 travels over the flange 33 and is designed to be selectively received in any of the notches 36 therein.

The springs tend to cause the extension 13' to be frictionally held in any of the notches 36 against undesirable accidental movement.

Gne part of the bell crank lever 14; rests 33, whereby the movable member is confined or retained between the upturned flange 34 and the bell crank lever lil,

The choker rod 11, when moved longitudinally for changing the adjustment of the carburetor will be held in any of its moved or adjusted positions by engagementof the movable member 32 with the choker rod 11.

lty choke latch may be quickly and easily mounted upon the bearing 15 and when mounted thereon is in position to operate by its cooperation with the choke rod 11.

Some changes may be made in the construction and arrangement of the various parts of my invention, without departing from the real spirit and purpose of my in# vention, and it is my intention tocover by my claims, any modified forms of structure or use of mechanical equivalents, which may be reasonably includedwithin their scope.

I claim asmy invention:

l. choke latch for carburetor choker rods comprising a support adjacent the choker rod, a novable member mounted upon the support, said movable member having a plurality of notches therein adapted to selectively receive the choker rod and means interposed between the support and tlpe movable member for yieldingly causing t ie rod as and for the purposes stated.

n choke latch for 4carlounetor choker rods comprising a support adjacent the choker rod, a movable member mounted. upon thev support, an upturned flange on said movable member having a plurality of notches therein adapted to selectively receive the choker rod and means interposed hctween the support and the movablemember for yieldingly causing the movable member to engageV the choker rod as and for the purposes stated.

3. A choke latch for carburetor choker rods in combination with a choker rofl having a, right angled extension on one end, a bell crank lever having the extension connected therewith and a bearing for the bell crank lever. comprising a support mounted Aadjacent the bell crank lever, a movable member mounted upon the support, a flange on said movable member having its edge curved upon an arc of circle with the pivot of the bell crank lever as a center, the edge of said flange being formed with a plurality of notches for receiving the extension of the choker rod and yielding1 means for forcing the movable member upwardly against the extension of the choker rod for retaining the choker rod in any of its positions with the extension thereof in any of said notches.

l. A choke latch for carburetor choker rods in combination with a choker rod having a right angled extension on one end, a bell crank lever having the extension connected therewith and bearing for the bell crank lever comprising a support mounted adjacent the bell crank lever, said support being bifurcated for extending over and on movable member to engage the choker lll() each side of the 'bearing for anchoring it 1 thereon Without additional means and means inovably mounted 'upon'said support f'oren-V Vgaging the choker rod for retaining itin any of its movable positions.

l5. A choke latch for carburetor choker lrods in combination `with' a choker rod having a right angled extension on one end, av

bell crank lever having the extension connected therewith and a'bearing forthebell crank lever, comprising al support mounted adjacent the bell crank lever, said support beingI bifurcated Ifor. extending over each side of the bearing for anchoring it thereon without additional means, a movable mem-- ber mounted upon the support, a flange on said movable member Vhavingigits edgek curved upon an arc of a circle with the pivot of the Ibell flange being formed with afplurality of notches for receiving the extension of the choker rod, and yielding vmeans for forcing `the movable member upwardly against the.

' thereon without additionalmeans, and a spring actuated movable member mounted on said support adapted to yieldingly engage and retain the choker rod in any of its positions.

7. A choke latch for carburetor choker rods in combination with a choker rod having a right angled extension on one end, a bell crank lever having the extension connected therewith and a bearing for the bell crank lever, comprising a support mounted adjacent the bell crank lever, said support being bifurcated for extending over and on each side of the bearing for anchoring it thereon Awithout additional means and a spring actuated movable member mounted on said support, a yflange on said last member having notches in its edge .adapted to receive the choker rod, said flange being curved in an arc of a circle having as its center the pivot of the bell crank lever so that the choker rod when. inoveol will travel upon the edge of the flange as and for the purposes stated.

8. A choke latch for carburetor choker rods in combination with a choker rod having a right angled extension on one end, a bell crank lever having the extension connected therewith and a bearing for the bell crank lever, comprising a support mounted adcrank lever as a center, the edge of said jacentfthe bell crank lever, said support beingbifurcated for extending over and on eachV side of the lbearing for anchoring it thereon lwithout' additionalhmeans, and a spring actuated .movable member Ymounted on said support, a flange onrsaid last mem- -ber having notches in its edge adapted to 'receive the choker rods for maintaining the Ychoker rod against A accidental. movement after it isV manually movedv into anyone of said notches.

v9. A choke latch for carburetor choker rods in V.combination with ay choker rod having aright angled extension on one end, a :bell crank lleveruhaving the extension con'- 'riected therewith and abearing for the bell cra-nk lever comprising a support mounted Aadjacent the Ybell crank lever, said supyport being bifurcated for extending over and on each side of the bearing for anchoring it thereon without additional means 'and aV member mountedv upon said support, 'springs interposed `between said member and the support for yieldingly holding it in oneposition, a flange on said last member having notches in its edge adapted to receive the choker rod, said flange being curvedv in an arc of a circle having as its centerv the. pivot of the bell crank lever so that the choker rod when moved will travel upon the edge of the flange as' and for the purposes stated.

10. A hoke latch for carburetor choker rods iii combination with a choker rod hav- -ing a right angled extension on one end, a

bell cra-nk lever having the extension connected therewith and a bearing for the bell crank lever, comprising a support mounted adjacent the bell crank lever, said support thereon without additional means, said support having a pair of openings therein, a movable member positioned above said support, guides on said last member and e-xtended through said openings, springs on sai-d guides positioned between said support and said member, said movable member being yieldingly held in enga-gement with the choker rod as and for the purposes stated. 11. A ch'oke latch for carburetor choker rods iny combination with a choker rod having a right angled extension on one end, a bell crank lever having the extension connected therewith and a.y bearing for the bell crank lever, comprising a support mounted adjacent the bell crank lever, said support being' bifurcated for extending over and on each side of the bearing for anchoring it thereon without additional mea-ns, said support having a pair of openings therein, a movable member positioned'above said support guides on said last member and extended through said openings, said guides serving as the means of connect-ion and as being bifurcated for extending over and on ,105'

each side of the bearing for anchoring it` 12. AV choke latch for carburetor'choker rods comprising a support, said support having a pair of openings therein, a movable member positioned above said support, guides on said last member and extended `through said openings, springs on said guides positioned between said support and said member, said movable member being yieldingly held in engagement with the choker rod as and for the purposes stated.

13. A. choke latch for carburetor choker rods comprising a support, said support having a pair ot 'openings therein, a movable member positioned above said support, guides on said last member and extended through said opening, springs on said guides positioned between said support and said member, a notched edge on said member adapted to engage the choker rod for retaining it against accidental displacement.

M. A choke latch for carburetor choker rods in combination with a choker rod having a right angled extension on one end, a bell crank lever having the extension con nected therewith, and a bearing for the bell crank lever comprising a support mounted adjacent the bell crank lever, said support being hifurcated for extending over and one each side ot the bearing for anchoring it thereon without additional means, and a spring actuated movable member mounted on said support adapted to yieldingly engage and retain the choker rod in any of its positions, a flange on said support adapted to rest against one side of said movable member whereby the movable member will be held between said flange on the support and the bell crank lever.

l5. A choke latch for carburetor choker rods comprising a supportV adjacent the choker rod having` plurality7 of notches therein for sele tively receiving a portion ot the choker roc for holding it against accidental movement, said support being capable oi"- yielding movement as and for the purposes stated.

Des Moines` Iowa, January 2, 1925.

JACK E. MESSENGER. 

